Blue Ash, Ohio Air Quality
Blue Ash has a median AQI of 54, earning an air quality grade of B — good air quality that ranks better than 5% of US cities. Air quality has remained relatively stable over the past decade. Particulate matter (PM2.5) is the primary concern, often linked to vehicle traffic, industrial activity, and wildfire smoke. In 2025, Blue Ash recorded 88 good air quality days (32% of monitored days) and 13 unhealthy days.
Population: 13,455 • County: Hamilton
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Quick Facts
| Current AQI | 54 — Moderate |
| Air Quality Grade | B |
| Median AQI (2025) | 54 |
| vs. U.S. Cities | Better than 5% |
| Primary Pollutant | PM2.5 |
| Unhealthy Days/Year | 13 |
| 10-Year Trend | → Stable |
| Data Source | EPA AirNow |
Health Recommendation
Air quality is acceptable. However, there may be a risk for some people who are unusually sensitive to air pollution.
Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion.
5-Day AQI Forecast
Last 30 Days
Current Pollutant Levels
Real-time data from EPA AirNow
AQI Trend (10 Years)
Air Quality Days by Year
2025 Air Quality Summary
Primary Pollutant Days (2025)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Blue Ash Air Quality
What is the air quality in Blue Ash today?
The current AQI in Blue Ash is 54, which is rated "Moderate". Air quality is acceptable. However, there may be a risk for some people who are unusually sensitive to air pollution.
Is air quality in Blue Ash getting better or worse?
Air quality in Blue Ash has remained relatively stable over the past decade, with a median AQI of around 54.
What is the most common air pollutant in Blue Ash?
PM2.5 is the primary air pollutant in Blue Ash, responsible for the most air quality-impacted days in 2025. Particulate matter can originate from vehicle exhaust, wildfires, and industrial emissions.
How many unhealthy air days does Blue Ash have per year?
In 2025, Blue Ash had 13 days when air quality was unhealthy or unhealthy for sensitive groups (AQI above 100). There were 88 good days and 173 moderate days out of 274 days monitored.
What air quality grade does Blue Ash receive?
Blue Ash receives an air quality grade of B, placing it better than 5% of US cities. This grade is based on a median AQI of 54 for 2025, derived from EPA monitoring data.
Air Quality Grade
Better than 5% of US cities
Nearby Cities
Protect Your Health
With a median AQI of 54, indoor air purification is recommended
See Recommended Purifiers ↓Get AQI Alerts
Receive notifications when air quality changes in Blue Ash
National Rankings
See how Blue Ash compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Blue Ash
Based on your area's air quality (median AQI: 54), we recommend these air purifiers to help protect your health indoors.
Honeywell HPA300
Powerful workhorse for large rooms. Built to last.
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Other Great Options
Blueair Blue Pure 211+
High performance for large rooms with simple operation.
RabbitAir MinusA2
Stylish wall-mountable design with customizable artwork panels.
Molekule Air Pro
Commercial-grade with patented PECO technology for destroying pollutants.
Not sure which air purifier is right for you?
Learn more about different types of air purifiers and how to choose the best one for your needs.
Read our complete buying guide →